Jon Stephenson von Tetzchner or, in Icelandic, Jón is an Icelandic programmer and businessman. He founded the company Vivaldi Technologies and launched a community site called Vivaldi.net. Also Tetzchner is co-founder and former CEO of Opera Software.
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Jon Stephenson von Tetzchner or, in Icelandic, Jón is an Icelandic programmer and businessman. He founded the company Vivaldi Technologies and launched a community site called Vivaldi.net. Also Tetzchner is co-founder and former CEO of Opera Software.